X0508 4 2025-11-21 0 0001428205 Armour Residential REIT, Inc. ARR 0002016620 Macauley Desmond 3001 OCEAN DRIVE SUITE 201 VERO BEACH FL 32963 0 1 0 0 Co-Chief Investment Officer 0 Common Stock, par value $0.001 per share 2025-11-21 4 M 0 1500 0 A 4734 D Common Stock, par value $0.001 per share 2025-11-21 4 F 0 393 16.31 D 4341 D Phantom Stock 2025-11-21 4 M 0 1500 0 D Common Stock 1500 25500 D On November 21, 2025, the reporting person elected to convert 1,107 of the 1,500 shares of vested phantom stock into 1,107 shares of ARMOUR common stock. The reporting person elected to convert the remaining 393 shares of vested phantom stock into cash solely to pay income taxes on the vested stock. The 1,500 shares are part of, and relate to, phantom stock vesting over a five-year period, which was reported on a Form 4 report filed by the reporting person on April 30, 2025. Each unit of phantom stock is the economic equivalent of one share of ARMOUR common stock. /s/ Desmond Macauley 2025-11-24